is just something they are not used to. >> ballots give voters the opportunity to pick their first, second and third choice candidates f.none of the candidates manage to secure 50% of the vote, then the computers will move to the next round. second choice candidates are counted, and the last place candidates are eliminated in search of a majority vote. the process goes on and on, round after round, until someone emerges as the winner. the city of san francisco has used the process since 2004 and it's also popular in places like australia and new zealand. some oakland voters say they didn't like it or didn't understand it. >> you know, we hear from people all the time that are unhappy with rank choice voting, and -- and it's important to understand it's the voters in these cities that approved it, and it was on the ballot as a ballot measure, and it was approved overwhelmingly. >> fair vote, an organization that supports rank choice voting says the system is generally used to avoid runoff elections in primaries.